Scaled sculpin

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Group of fishes

title: "Scaled sculpin" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["cottinae", "icelus", "taxa-named-by-henrik-nikolai-krøyer"] description: "Group of fishes" topic_path: "general/cottinae" source: "https://en.wikipedia.org/wiki/Scaled_sculpin" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Group of fishes ::

| fossil_range = | image = Spatulate Sculpin.jpg | image_caption = Icelus spatula | taxon = Icelus | authority = Krøyer, 1845 | type_species = Icelus hamatus | type_species_authority = Krøyer, 1845 | subdivision_ranks = Species | subdivision = See text. | synonyms = {{Genus list | Agonocottus | Pavlenko, 1910 | Icelichthys | Schmidt, 1935 | Ochotskia | Schmidt, 1916 | synonyms_ref = The scaled sculpins, Icelus, are a genus of marine ray-finned fishes belonging to the family Psychrolutidae, the marine sculpins. Most of the fishes in this genus are found in the northern Pacific Ocean but they also occur in the North Atlantic Ocean.

Taxonomy

The scaled sculpin genus, Icelus was first proposed as a monospecific genus in 1845 by the Danish zoologist Henrik Nikolai Krøyer when he described Icelus hamatus as a new species from Belsund in Spitsbergen. L. hamatus has since been determined to be synonym of Cottus bicornis, which had been described by Johan Reinhardt in 1840 from East Greenland. however, other authors classify the genus within the subfamily Icelinae of the family Psychrolutidae.

Etymology

The scaled sculpin genus name, Icelus, is the name of one of the sons of Hypnus, a Greek god of sleep and is a reference to the sluggish movements of many northern sculpin species.

Species

The 17 recognised species in this genus are:

Characteristics

Scaled sculpins are characterised by having a single row of large, spiny plate-like scales underneath the dorsal fins, having spinous tube-like scales on the lateral line, they have scales on the axil of the pectoral fins as well as on the upper part of the eye. They also have a spine or bump on the nuchal bone. These fishes vary in size from the smallest, I. sekii, with a maximum published standard length of 5.3 cm, to the largest, I. cataphractus, which has a maximum published total length of 30 cm.

Distribution

Scaled sculpins are mainly Pacific species, 16 of the 18 species being found in the North Pacific Ocean, with 2 species, the twohorn sculpin (I. bicornis) and the spatulate sculpin (I. spatula) being found in the Atlantic Ocean, the latter also being found in the Arctic Ocean.

References

References

  1. {{Cof family
  2. {{Cof genus|genus=Icelus|access-date=28 January 2023}}
  3. (2016). "Fishes of the World". Wiley.
  4. (22 October 2022). "Order Perciformes: Suborder Cottoidea: Infraorder Cottales: Family Cottidae (Sculpins)". Christopher Scharpf and Kenneth J. Lazara.
  5. {{FishBase genus. (2022)
  6. Nazarkin, Mikhail V.. (2021-10-01). "The Structure of the Miocene Northwestern Pacific Ichthyofauna as Revealed By Two Fossil Fish Assemblages From Sakhalin Island, Russia". Paleontological Research.
  7. Matthew L. Knope. (2013). "Phylogenetics of the marine sculpins (Teleostei: Cottidae) of the North American Pacific Coast". Molecular Phylogenetics and Evolution.

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cottinaeicelustaxa-named-by-henrik-nikolai-krøyer